1. Sicherheitshinweise
Read and understand all safety warnings and instructions before operating this heater. Failure to follow these instructions may result in fire, explosion, electric shock, serious injury, or death.
- Belüftung: Always ensure adequate ventilation when operating this heater. Kerosene heaters consume oxygen and produce carbon monoxide. Operating in an unventilated area can lead to carbon monoxide poisoning.
- Kraftstoff: Use only K-1 kerosene or #2 fuel oil. Never use gasoline, paint thinners, or other highly flammable liquids. Store fuel in an approved container in a well-ventilated area away from the heater.
- Platzierung: Position the heater on a level, stable surface. Maintain a minimum clearance of 3 feet (0.9 meters) from combustible materials on all sides, top, and front. Do not operate near curtains, drapes, or other flammable fabrics.
- Betrieb: Do not move, handle, or refuel the heater while it is operating or hot. Allow it to cool completely before performing any maintenance or refueling.
- Kinder und Haustiere: Keep children and pets away from the heater at all times.
- Warnung zu Proposition 65: Dieses Produkt kann Sie Chemikalien wie Kohlenmonoxid aussetzen, von dem im US-Bundesstaat Kalifornien bekannt ist, dass es Geburtsfehler oder andere Fortpflanzungsschäden verursacht. Weitere Informationen finden Sie unter www.P65Warnings.ca.gov.
2. Produktüberschreitungview
The Master MH-125-OFR is a portable kerosene-fired radiant heater designed for outdoor use and well-ventilated indoor spaces such as garages, workshops, and construction sites. It provides efficient heating through both radiant and fan-forced methods.

Image 1: Master MH-125-OFR Kerosene Fired Radiant Heater. This image shows the heater from a slight angle, highlighting its robust construction, the radiant dish, and the heavy-duty wheels for portability.
Hauptmerkmale:
- Heizleistung: 95,000 / 125,000 BTU, capable of heating up to 3,125 square feet.
- Kraftstoffeffizienz: Operates for approximately 20 hours on a full 14-gallon tank.
- Heizsystem: Combines radiant and fan-forced heating for effective warmth.
- Portabilität: Equipped with heavy-duty wheels for easy movement.
- Haltbarkeit: Designed for demanding environments.
3. Einrichtung
- Auspacken: Carefully remove the heater from its packaging. Inspect for any shipping damage. Retain packaging for future storage or transport.
- Montage (falls erforderlich): The heavy-duty wheels are typically pre-assembled or require minimal attachment. Refer to the separate assembly sheet if included. Ensure all components are securely fastened.
- Platzierung: Place the heater on a firm, level, non-combustible surface. Ensure the heater is at least 3 feet (0.9 meters) away from walls, fabrics, and other combustible materials.
- Tanken:
- Ensure the heater is turned OFF and completely cool before refueling.
- Use only K-1 kerosene or #2 fuel oil. Do not use gasoline or other volatile fuels.
- Fill the fuel tank slowly to prevent spills. Do not overfill.
- Wischen Sie verschütteten Kraftstoff sofort auf.
- Stromanschluss: Connect the heater to a properly grounded 120 Volt AC electrical outlet. Do not use extension cords unless they are rated for outdoor heavy-duty use and appropriate for the heater's power requirements.
4. Bedienungsanleitung
Heizung einschalten:
- Ensure the fuel tank is adequately filled with K-1 kerosene or #2 fuel oil.
- Verify the heater is plugged into a grounded 120V outlet.
- Locate the power switch (often a single switch operation).
- Turn the power switch to the "ON" position. The heater should ignite within a few seconds.
- If the heater fails to ignite, turn it off, wait a few minutes, and try again. If issues persist, refer to the Troubleshooting section.
Einstellen der Heizleistung:
This model typically offers a fixed heat output or a high/low setting. Consult the control panel for specific adjustment options. The MH-125-OFR provides 95,000 or 125,000 BTU output.
Heizung abschalten:
- Schalten Sie den Netzschalter in die Position „AUS“.
- Lassen Sie das Heizgerät vor dem Transport oder der Lagerung vollständig abkühlen. Der Lüfter kann zur Kühlung der internen Komponenten noch kurzzeitig nachlaufen.
Wichtig: Do not move the heater while it is operating or still hot. This can be dangerous and may damage internal components like the photocell.
5. Wartung
Regular maintenance ensures efficient and safe operation of your Master MH-125-OFR heater. Always disconnect the heater from the power supply and allow it to cool completely before performing any maintenance.
Täglich/vor jedem Gebrauch:
- Überprüfen Sie das Netzkabel auf Beschädigungen.
- Auf Kraftstofflecks prüfen.
- Ensure the area around the heater is clear of obstructions and combustible materials.
Wöchentlich/Monatlich:
- Clean the Photocell: Gently wipe the photocell lens with a clean, soft cloth or cotton swab. A dirty photocell can prevent the heater from staying lit.
- Reinigen Sie die Lüfterblätter: Remove any dust or debris from the fan blades to ensure proper airflow.
- Kraftstofffilter prüfen: Inspect the fuel filter for clogs or debris. Clean or replace if necessary.
- Sauberes Äußeres: Wischen Sie die Außenseite des Heizgeräts mit einem Tuch ab.amp Tuch. Keine Scheuer- oder Lösungsmittel verwenden.
Lagerung:
When storing the heater for extended periods, drain all fuel from the tank. Store in a dry, clean area away from direct sunlight and extreme temperatures.
6. Fehlerbehebung
If your Master MH-125-OFR heater is not operating correctly, consult the following table before contacting customer support.
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Die Heizung startet oder zündet nicht. | No power; no fuel; dirty photocell; faulty ignition. |
|
| Heater starts but shuts off quickly. | Dirty photocell; low fuel; inadequate ventilation; clogged fuel filter. |
|
| Übermäßiger Rauch oder ungewöhnlicher Geruch. | Incorrect fuel type; dirty burner; poor ventilation. |
|
| Fuel leaks. | Loose connections; damaged fuel line or tank. |
|
7. Spezifikationen
| Besonderheit | Detail |
|---|---|
| Modellnummer | MH-125-OFR |
| Marke | Master |
| Wärmeabgabe | 95,000 / 125,000 BTU |
| Heizungsabdeckung | Bis zu 3,125 Quadratmeter |
| Kraftstoffart | Kerosene, #2 Fuel Oil |
| Tankinhalt | 14 Gallons (approx. 20 hours run time) |
| Stromquelle | 120 Volt |
| Heizmethode | Forced Air, Radiant & Infrared |
| Verwendung im Innen- und Außenbereich | Outdoor (or well-ventilated indoor spaces) |
| Besondere Merkmale | Portable, Heavy-duty Wheels |
| Artikelabmessungen (T x B x H) | 30"T x 8"B x 6"H |
| Artikelgewicht | 73 Pfund |
8. Garantie und Support
Garantieinformationen:
The Master MH-125-OFR Kerosene Fired Radiant Heater comes with a 1 Jahr eingeschränkte Garantie covering parts and labor from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
The warranty does not cover damage resulting from misuse, abuse, accident, unauthorized repairs, or failure to follow the instructions in this manual.
Kundendienst:
For technical assistance, warranty claims, or to order replacement parts, please contact Master customer support. Have your model number (MH-125-OFR) and proof of purchase readily available when contacting support.
Contact information for Master products can typically be found on the manufacturer's official webauf der Website oder auf der Produktverpackung.